Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

In which stage of the cell cycle does a cell spend most of its time?

1. AMetaphase
2. BAnaphase
3. CInterphase
4. DProphase

Where in the cell does glycolysis take place?

1. AIn the nucleus
2. BIn the cytoplasm
3. CIn the mitochondrial matrix
4. DIn the chloroplast

What is a monosaccharide?

1. AA single sugar unit, such as glucose
2. BTwo sugars joined together, such as sucrose
3. CA chain of many amino acids
4. DA fat made of glycerol and fatty acids

Which polymer is correctly matched with its monomer?

1. AProtein and nucleotide
2. BStarch and glucose
3. CDNA and amino acid
4. DGlycogen and fatty acid

Kaip fermentas pagreitina cheminę reakciją?

1. ASunaudojamas kaip reagentas
2. BPrideda energijos produktams
3. CPakelia ląstelės temperatūrą
4. DSumažina aktyvacijos energiją

Why do root hair cells have long, thin extensions?

1. ATo increase the surface area for absorbing water
2. BTo anchor the plant firmly against strong winds and rain
3. CTo carry out photosynthesis underground
4. DTo store starch for the winter

Bacteria in a closed flask grow quickly at first, but the population then stops increasing. What is the main reason?

1. AThe bacteria change into viruses after many divisions
2. BThe bacteria stop dividing once they reach adult size
3. CThe flask becomes too cold for growth
4. DNutrients run out and waste products build up

Two genes lie very close together on the same chromosome. In a test cross, most offspring look like the parents instead of the expected 1:1:1:1 ratio. Why?

1. AA frameshift mutation happened in both genes
2. BThe genes are on different chromosomes and assort independently
3. CThe genes are linked and are rarely separated by crossing over
4. DBoth genes show incomplete dominance